--- title: "Gamko New Energy GKA120N-PRO-585W 585W Solar Panel - Specs & Review | ComparePV" description: "Gamko New Energy GKA120N-PRO-585W 585W solar panel. Specs: 23.62% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w" updated: 2026-09-11 --- # Gamko New Energy GKA120N-PRO-585W Efficiency leader, no clear weak spot 1,017 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA120N-PRO-585W - **Series:** GKA120N-PRO - **Rated power:** 585 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 550-600 W (1017 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 580 W | Typical | | | Module efficiency | 23.62% | 22.44% | Strong - top 1% | 615 | | Power density | 236.2 | 224.4 | Strong - top 1% | 614 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 26.7 kg | 31.2 kg | Strong - top 7% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.62% | 22.44% | Strong - top 1% | 615 | | Power density | 236.2 | 224.4 | Strong - top 1% | 614 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 45.6 | 53.8 | Strong - top 7% | 802 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.62% module efficiency** - Top 1% of the TOPCon 550-600 W segment, against a median of 22.44%. Ranked 615th in the whole database. - **236.2 watts per square metre** - Top 1% of the TOPCon 550-600 W segment, against a median of 224.4. Ranked 614th in the whole database. - **45.6 kg per kWp** - Top 7% of the TOPCon 550-600 W segment, against a median of 53.8. Ranked 802nd in the whole database. - **Best for:** Commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 23.62 % - **Voltage at Pmax (Vmp):** 36.21 V - **Current at Pmax (Imp):** 16.18 A - **Open-circuit voltage (Voc):** 43.30 V - **Short-circuit current (Isc):** 16.96 A ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 2184 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 26.7 kg - **Area:** 2.48 m2 - **Power density:** 236.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 615 of 14005 | | Power density | 614 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 802 of 14005 | | Warranty | 21 of 14005 | ## Pros - **23.82% Efficiency — Segment Leader** - The module's peak efficiency of 23.82% clearly outperforms its closest competitors: Talesun TM7G72M (22.80%), Horay Solar HS 182-144 TC-D Ocean (22.80%), and AE Solar HORIZON CMD-144BDS (22.86%). The ~1 percentage-point advantage translates to approximately 4–5% more power output from the same roof or ground area. - **N-Type TOPCon + Bifacial: Lower Degradation Rate** - N-type TOPCon cells exhibit LID/LeTID degradation below 0.5%/year (vs. ~0.55–0.60% for PERC), while the bifacial construction delivers an additional 5–20% energy yield from ground-reflected irradiance in utility-scale and flat-roof installations. Effective annual energy yield therefore exceeds what front-side efficiency alone would suggest. - **30-Year Linear Power Warranty** - The manufacturer guarantees power output for 30 years, matching the premium-tier standard set by Trina Solar and JA Solar. The peer comparables referenced (Talesun, Horay, AE Solar) offer equivalent or shorter power warranty periods, so the series is fully competitive in this regard. - **IEC 61215 and IEC 61730 Certification** - Gamko modules are certified to IEC 61215 (performance and durability) and IEC 61730 (electrical safety), enabling their use in projects that require compliance with European building codes and insurer requirements. - **10 Power Variants Spanning 570–590 W** - Availability of 10 variants in 2 W increments facilitates precise string design in utility-scale and commercial installations, minimizing power mismatch losses across modules. ## Cons - **Product Warranty of Only 12 Years** - Tier-1 manufacturers (JA Solar, LONGi, Trina Solar) typically offer 15–25 year product warranties. The 12-year product warranty provided for the Gamko GKA120N-PRO places the series below that benchmark and may be a limiting factor in securing project finance for commercial installations with debt repayment horizons exceeding 10 years. - **Not Listed on BNEF Tier 1** - Gamko New Energy does not appear on the public BNEF Tier 1 module manufacturer lists (Q1 2026). For institutional investors and project finance lenders, the absence of Tier 1 status may require additional due diligence or prevent the modules from meeting bankability requirements specified in loan agreements. - **Limited Manufacturing Scale and Brand Recognition** - Gamko's annual production capacity is approximately 1.2 GW (2023), while industry leaders such as JinkoSolar and Trina Solar operate at 50–80 GW scale. The smaller manufacturing footprint may result in challenges fulfilling large orders on short timelines and a limited after-sales service network outside China. ## About this series The Gamko New Energy GKA120N-PRO series is designed to maximize energy yield on the same roof or ground area, making it ideal for locations where every square meter counts. The use of **N-type cells in TOPCon technology** ensures better operational stability and reduced susceptibility to typical power losses over a longer period, resulting in more predictable installation performance. A key advantage is also **the high efficiency of the module** - this simplifies the design of high-power installations without the need for extensive structural modifications. In practice, GKA120N-PRO helps address issues related to limited space, reduced production during hot weather, and the need for long-term, safe operation - it supports **an advantageous temperature coefficient** and a well-designed module. The series is a good choice for **commercial and industrial installations**, PV farms, and modern homes with high self-consumption needs. It stands out from the competition due to its combination of N-type TOPCon technology with a focus on durability and long-term operation. ## Notable figures - Efficiency of 23.6% is 1.2pp above the \*\*TOPCon 550-600W\*\* median (22.4%) - 236.2 W/m² power density - 11.8 W/m² more than \*\*TOPCon 550-600W\*\* median (224.4 W/m²), more power per roof area - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 550-600W\*\* panels - Weight of 26.7 kg (4.5 kg below \*\*TOPCon 550-600W\*\* median of 31.2 kg) allows easier transport and roof mounting - Ranked #615 out of 14005 panels for efficiency in the database ## Questions ### What is the warranty on the Gamko New Energy GKA120N-PRO panels? The GKA120N-PRO series is covered by a 12-year product warranty (against material and workmanship defects) and a 30-year power output warranty. The power warranty guarantees that the module will maintain a specified efficiency level for three decades — one of the longest standards in the commercial segment. Warranty documents are issued by Nantong Gamko New Energy Co., Ltd., headquartered in China. ### What is TOPCon technology and why should I choose it in the GKA120N-PRO series? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that minimizes electron recombination losses at the cell-metal interface. In practice, this translates to higher efficiency — GKA120N-PRO panels achieve up to approximately 23% — as well as a more favorable temperature coefficient compared to older P-type PERC cells. For rooftop and commercial installations, this means more energy generated from the same surface area and smaller output losses on hot days. ### Is the Gamko New Energy GKA120N-PRO a bifacial panel, and what does that mean for my installation? Yes, the GKA120N-PRO is a bifacial module, meaning it generates energy from both the front and rear cell surfaces. The rear side captures diffuse and reflected light — for example, from a light-colored roofing membrane, concrete, or gravel. In typical ground-mounted installations or those with a light-colored substrate, energy yield can increase by several to over ten percent compared to a conventional monofacial module. On shaded or dark rooftops, the bifacial gain is minimal. ### What is the peak power of the highest-wattage panel in the GKA120N-PRO series, and what installations is it suited for? The maximum peak power in the GKA120N-PRO series is 590 Wp. This output makes the modules well-suited for commercial, industrial, and utility-scale photovoltaic installations where high power density per square meter is critical. For residential prosumers, 590 Wp enables a large system to be built with fewer panels, reducing installation labor costs and structural loading on the roof. ### Do the Gamko GKA120N-PRO panels perform well in harsh weather conditions — wind, snow, and heat? The GKA120N-PRO series is certified for wind loads up to 2,400 Pa and snow loads up to 5,400 Pa, meeting the requirements for the majority of locations in Poland and Central Europe. N-type TOPCon technology provides a favorable temperature coefficient, so the modules lose less power during summer heat compared to older P-type cells. Resistance to salt mist and ammonia exposure has also been confirmed, making these panels suitable for agricultural installations. ### How does the Gamko GKA120N-PRO series differ from lower-cost PERC panels available on the market? The primary difference lies in cell technology: the GKA120N-PRO uses N-type TOPCon, whereas lower-cost alternatives are typically based on P-type PERC. TOPCon delivers higher efficiency (approximately 23% vs. 21–22% for PERC), a lower temperature coefficient, and a slower linear degradation rate over time. This results in greater total energy yield over the full 30-year system lifetime, despite the higher upfront cost. The series is also bifacial — a feature that PERC modules in this price class often do not offer. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/pro-120n-182x210mm-solar-cells-c38540c87ba8.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -25 W, cooler, +1.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -30 W, cooler, +1.0 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, cooler, +1.0 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +45 W, cooler, heavier | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +0.8 pp | | [Gamko New Energy GKA120N-PRO-570W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-570w) | 570 W | -15 W, -0.6 pp | | [Gamko New Energy GKA120N-PRO-575W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-575w) | 575 W | -10 W, -0.4 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | Very close match | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +65 W, cooler, +1.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +60 W, cooler, +1.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +55 W, cooler, +1.2 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.